import org.apache.commons.lang3.StringUtils;

import java.io.Serializable;

/**
 * @author CuiJian
 * Date    2021/10/17 13:41
 */
@lombok.Data
public class JvmDemo implements Serializable {


    /**
     * query : {"match_all":{}}
     * from : 100
     * size : 10
     */

    private int from;
    private int size;

    public static void main(String[] args) {
        String aa = "aa";
        String bb = new String() ;
        final boolean notEmpty = StringUtils.isNotEmpty(aa);
        System.out.println(bb.getBytes());
    }

}
